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The height in feet of a rocket after t seconds is given by h(t) = 160t - 16t2.

Find the maximum height the rocket attains:

After how many seconds does it reach this height?

  • math -

    -16x^2 + 160t

    The max. point on the parabola is the vertex:

    t = Xv = -B/2A = -160/-32 5 s

    hmax. = Yv = -16*5^2 + 160*5 = 400 Ft.

    V(5,400).

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